13452226561 has 4 divisors (see below), whose sum is σ = 13474388992. Its totient is φ = 13430064132.

The previous prime is 13452226553. The next prime is 13452226573. The reversal of 13452226561 is 16562225431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16562225431 = 4441 ⋅3729391.

It is a cyclic number.

It is not a de Polignac number, because 13452226561 - 2³ = 13452226553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13452226561.

It is not an unprimeable number, because it can be changed into a prime (13452226261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11080305 + ... + 11081518.

It is an arithmetic number, because the mean of its divisors is an integer number (3368597248).

Almost surely, 2^13452226561 is an apocalyptic number.

It is an amenable number.

13452226561 is a deficient number, since it is larger than the sum of its proper divisors (22162431).

13452226561 is an equidigital number, since it uses as much as digits as its factorization.

13452226561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22162430.

The product of its digits is 86400, while the sum is 37.

The spelling of 13452226561 in words is "thirteen billion, four hundred fifty-two million, two hundred twenty-six thousand, five hundred sixty-one".